Microstructure and mechanical properties of gamma TiAl based alloys produced by combustion synthesis + compaction route

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dc.contributor.authorAgote, I.
dc.contributor.authorColeto, J.
dc.contributor.authorGutiérrez, M.
dc.contributor.authorSargsyan, A.
dc.contributor.authorGarcía de Cortazar, M.
dc.contributor.authorLagos, M. A.
dc.contributor.authorBorovinskaya, I. P.
dc.contributor.authorSytschev, A. E.
dc.contributor.authorKvanin, V. L.
dc.contributor.authorBalikhina, N. T.
dc.contributor.authorVadchenko, S. G.
dc.contributor.authorLucas, K.
dc.contributor.authorWisbey, A.
dc.contributor.authorPambaguian, L.
dc.contributor.institutionEXTREMAT
dc.contributor.institutionMercado
dc.contributor.institutionSG
dc.contributor.institutionCIRMETAL
dc.date.accessioned2024-07-24T12:09:45Z
dc.date.available2024-07-24T12:09:45Z
dc.date.issued2008-11
dc.description.abstractMicrostructure and mechanical properties of γ-TiAl alloy with the chemical composition Ti-48Al-2Cr-2Nb (at.%) have been investigated. The alloy was prepared in one step using a combustion synthesis + compaction process, where the synthesis and the shaping take place at the same time. Two different combustion routes were used: forced self-propagating high-temperature synthesis + compaction (FSHS + C) and thermal explosion + compaction (TE + C). Fully lamellar microstructure was obtained in both processing routes after the appropriate homogenisation thermal treatment. Nevertheless, TE + C route showed coarser lamellar colonies. A remarkable oxygen content reduction was achieved in samples synthesised by FSHS + C route. Tensile properties (especially UTS) were found to be in the same range as other alloys obtained by conventional processing routes, however, low ductility was achieved. Good creep and fatigue properties were obtained. All fracture surfaces showed a brittle fracture mechanism. Finally, it was found out that the studied processing routes showed promising results as an alternative manufacturing technology for γ-TiAl based alloys.en
dc.description.sponsorshipThis work was carried out within the frame work of the project with reference 18955/05/NL/CP, entitled “High Temperature Complex Parts Based on Intermetallics” supported by ESA (European Space Agency).
dc.description.statusPeer reviewed
dc.format.extent7
dc.identifier.citationAgote , I , Coleto , J , Gutiérrez , M , Sargsyan , A , García de Cortazar , M , Lagos , M A , Borovinskaya , I P , Sytschev , A E , Kvanin , V L , Balikhina , N T , Vadchenko , S G , Lucas , K , Wisbey , A & Pambaguian , L 2008 , ' Microstructure and mechanical properties of gamma TiAl based alloys produced by combustion synthesis + compaction route ' , Intermetallics , vol. 16 , no. 11-12 , pp. 1310-1316 . https://doi.org/10.1016/j.intermet.2008.08.007
dc.identifier.doi10.1016/j.intermet.2008.08.007
dc.identifier.issn0966-9795
dc.identifier.urihttps://hdl.handle.net/11556/4007
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=55949083643&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofIntermetallics
dc.relation.projectIDEuropean Space Agency, ESA
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsA. intermetallics, miscellaneous
dc.subject.keywordsA. titanium aluminides, based on TiAl
dc.subject.keywordsB. mechanical properties at high temperatures
dc.subject.keywordsC. reaction synthesis
dc.subject.keywordsG. aerospace constructional uses
dc.subject.keywordsGeneral Chemistry
dc.subject.keywordsMechanics of Materials
dc.subject.keywordsMechanical Engineering
dc.subject.keywordsMetals and Alloys
dc.subject.keywordsMaterials Chemistry
dc.subject.keywordsSDG 9 - Industry, Innovation, and Infrastructure
dc.titleMicrostructure and mechanical properties of gamma TiAl based alloys produced by combustion synthesis + compaction routeen
dc.typejournal article
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